9902.07.77 - (3S,4S,5S,6R)-6-(Hydroxymethyl)oxane-2,3,4,5-tetrol (D-Mannose) (CAS No. 3458-28-4) (provided for in subheading 2940.00.60)

This HTS category, 9902.07.77, specifically covers D-Mannose, identified chemically as (3S,4S,5S,6R)-6-(Hydroxymethyl)oxane-2,3,4,5-tetrol, and associated with CAS Number 3458-28-4. This classification is part of Chapter 99, which pertains to temporary legislation, modifications to trade agreements, and additional import restrictions enacted under Section 22 of the Agricultural Adjustment Act. While the base tariff classification for D-Mannose would typically be found in Chapter 29, subheading 2940.00.60, this 9900 series code indicates special, often temporary, regulatory treatment.

Distinguishing this category from its sibling categories, which predominantly cover live animals under Chapter 01, is straightforward. This node addresses a specific chemical compound, D-Mannose, which is a simple sugar with a distinct molecular structure and chemical properties. The siblings are concerned with the import of live animals for various agricultural or other purposes. The presence of this entry in Chapter 99 signifies that its importation is subject to particular administrative or policy-driven controls that are separate from the standard classification of goods.

As this node is a leaf node, it does not have further subcategories within the HTS structure. Therefore, the focus for classification purposes under 9902.07.77 is on the definitive identification of D-Mannose. Importers must ensure that the goods precisely match the chemical description and CAS number provided, and crucially, they must be aware of and comply with any specific proclamations, restrictions, or reporting requirements associated with this temporary or special classification provision.